JP2013231610A - Temperature sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temperature sensor that allows an easy detachment operation from an attachment-receiving part.SOLUTION: A temperature sensor 10 has an attachment member 14 and an insertion member 20. The attachment member 14 is attached to an attachment-receiving part 12 having an attachment hole 13, and has a sealing portion covering the attachment hole 13. The insertion member 20 has a temperature measurement part 27 arranged at a location for measuring temperature and is assembled by being inserted through the attachment member 14. The insertion member 20 has a regulation part 29 and an interlock part 24. The regulation part 29 regulates movement in a detachment direction which is opposite to an insertion direction of the insertion member 20, under a state assembled at a regular position to the attachment member 14, and releases the regulation through slidingly moving in a release direction being a direction crosswise to an insertion direction of the insertion member 20 to the attachment member 14, from the state assembled at the regular position. The attachment member 14 is moved in a connected state to the movement in the detachment direction of the insertion member 20 whose regulation by the interlock part 24 and the regulation part 29 are released.

Description

  The present invention relates to a temperature sensor.

  Conventionally, the thing of patent document 1 is known as a temperature sensor. In this temperature sensor, a temperature detection element is accommodated in a housing, and an anchor type clip is formed at a lower end portion of the housing. With the temperature sensor inserted into the hole formed in the attached member, the clip is elastically engaged with the attached member so that the temperature sensor is fixed to the attached member. It has become.

JP 2006-250763 A

By the way, in the structure of the said patent document 1, when removing a temperature sensor, it is necessary to cancel | release engagement with an anchor-type clip and a to-be-attached member. There is a problem in that it is necessary to perform an operation of releasing the engagement between the clip and the attached member, and it is not easy to remove the clip.
This invention is completed based on the above situations, Comprising: It aims at providing the temperature sensor which can facilitate the removal operation | work from a to-be-attached part.

  The present invention includes an attachment member having a seal portion that is attached to the attachment portion having the attachment hole and covers the attachment hole, and a temperature measurement portion arranged at a temperature measurement position, and is inserted through the attachment member. An insertion member to be assembled, wherein the insertion member is moved in a disengagement direction opposite to the insertion direction of the insertion member in a state where the insertion member is assembled at a normal position with respect to the mounting member. And a restriction part that releases the restriction by sliding in a release direction that is a direction intersecting the insertion direction of the insertion member with respect to the attachment member from the state assembled at the regular position. And an interlocking part that moves the attachment member in a connected state with respect to the movement of the insertion member released from the restriction by the restriction part in the detachment direction.

According to this configuration, if the insertion member whose movement in the separation direction is restricted by the restricting portion is slid relative to the mounting member, the restriction of the restricting portion is released. Then, when the insertion member is moved in the removal direction from the state where the restriction of the restriction portion is released, the attachment member is moved in the removal direction together with the insertion member by the interlocking portion of the insertion member. Thereby, it becomes possible to remove a temperature sensor from the side which attached the temperature sensor with respect to the to-be-attached part. Therefore, it is possible to facilitate the removal work of the temperature sensor from the attached portion.
In addition to the above configuration, the following configuration is preferable.

The restricting portion is a bending piece that deforms in contact with the attached portion when the attachment member is attached to the attached portion in a state where the insertion member is assembled at the regular position, 2. The temperature sensor according to claim 1, wherein the bending piece has a locking portion that locks to the mounted portion with respect to movement of the insertion member in the detaching direction in a state where the bending piece is assembled at the normal position.
If it does in this way, it will become possible to simplify the composition of a control part.

The attachment member is provided with an elastic contact piece that makes elastic contact with the sliding movement of the insertion member.
In this way, it is usually possible to bias the insertion member toward the normal position side by the elastic force of the elastic contact piece.

The interlocking unit contacts the end of the elastic contact piece and moves the attachment member in a connected state.

  In this case, since the elastic contact piece is used for interlocking the attachment member, the structure for interlocking the attachment member is compared with the case of providing a structure that abuts the interlocking portion separately from the elastic contact piece. It becomes possible to simplify.

-The insertion member is provided with the cylindrical part in which the temperature detection element which comprises the said temperature measurement part is accommodated, and the said interlocking | linkage part is formed in the said cylindrical part.
If it does in this way, it will become possible to form an interlocking part using composition of a cylindrical part.

-The interlocking part is a protrusion protruding from the cylindrical part.
If it does in this way, it will become possible to form an interlocking part by simple composition.

The attachment hole has an oval shape, and the attachment member is provided with a fitting wall that is fitted into the attachment hole.
If it does in this way, it will become possible to prevent rotation in the peripheral direction of a temperature sensor using the shape of an attachment hole.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to ease the removal operation | work from a to-be-attached part about a temperature sensor.

The side view which shows the state by which the temperature sensor was attached to the to-be-attached part of Embodiment 1. The figure which shows the state where the temperature sensor was attached to the attachment part from the bottom side 2 is a cross-sectional view taken along the line AA in FIG. Sectional drawing which shows the state which slidably moved the insertion member with respect to the attachment member from the state of FIG. 3, and elastically deformed the elastic contact piece. Top view showing temperature sensor Front view showing temperature sensor Side view showing temperature sensor Rear view showing temperature sensor Bottom view showing temperature sensor Front view showing the mounting member Side view showing the mounting member Bottom view showing mounting member Side view showing the insertion member Rear view showing the insertion member Bottom view showing the insertion member

<Embodiment 1>
The first embodiment will be described with reference to FIGS.
The temperature sensor 10 according to the present embodiment is mounted on a battery module (not shown) that is mounted on a vehicle (not shown) such as an electric vehicle or a hybrid vehicle and used as a power source of the vehicle, for example. It is attached to (attached member). In the following description, the upper and lower directions will be described with reference to FIG. 1 with the right side of FIG. 1 as the front and the left side as the rear.

(Duct 11)
As shown in FIG. 1, the duct 11 is formed in a shape such as a rectangular tube shape or a cylindrical shape, and forms a flow path (space) on the inner side (lower side in FIG. 1). Is distributed. In FIG. 1, the temperature sensor 10 and a part of the duct 11 are illustrated, and the other part of the duct 11 is omitted.

  Since the performance of the battery module is affected by temperature, it is preferable to maintain the temperature of the battery module at a predetermined temperature. Therefore, if the air duct 11 is provided in the battery module, the battery module is cooled by cold air when the temperature of the battery module is relatively high, and conversely, the temperature of the battery module becomes relatively low. If it is, it can be heated by warm air.

  As described above, in order to control the temperature of the battery module by blowing air, it is necessary to detect the temperature of the air flowing through the duct 11. For this reason, the temperature sensor 10 is attached to the duct 11.

Specifically, the duct 11 has an attached portion 12 to which the temperature sensor 10 is attached. As shown in FIG. 3, the attached portion 12 includes a temperature measuring portion 27 of the temperature sensor 10 in the duct 11. A mounting hole 13 to be introduced is formed through.
The shape of the mounting hole 13 is an oval shape that is long in the front-rear direction.

(Temperature sensor 10)
The temperature sensor 10 includes an attachment member 14 attached to the attached portion 12 and an insertion member 20 inserted through the attachment member 14.

(Mounting member 14)
The attachment member 14 is made of synthetic resin, and extends below the sandwiching portion 15 with a sandwiching portion 15 in contact with the upper surface of the attached portion 12 while being sandwiched between the insertion member 20 and the attached portion 12. A pair of fitting walls 16, 16 fitted into the mounting hole 13 and an elastic contact piece 17 extending below the holding part 15 and elastically contacting the insertion member 20 are provided.

  As shown in FIG. 12, the sandwiching portion 15 is a plate having a circular outer periphery, is provided around the hole edge of the mounting hole 13, and its lower surface is in close contact with the upper surface of the mounted portion 12. It seals so that it may contact and air may not leak from between attachment parts 12.

The pair of insertion walls 16, 16 are both provided along the hole wall so that the outer surface side hardly forms a gap between the attachment wall 13 and the hole wall. Between the insertion walls 16 and 16 in front of the insertion walls 16 and 16, the insertion walls 16 and 16 are not provided because of the space where the elastic contact piece 17 is arranged. An insertion recess 15A through which the restricting portion 31 is inserted is provided behind the insertion walls 16 and 16, and the holding portion 15 is notched and the insertion walls 16 and 16 are not provided.
An insertion hole 14 </ b> A through which the insertion member 20 is inserted is formed through the inside of the holding portion 15 and the insertion wall 16.

  As shown in FIG. 3, the elastic contact piece 17 extends obliquely downward toward the interlocking portion 24 of the insertion member 20 with a portion where the insertion walls 16, 16 of the clamping portion 15 are divided on the front side as a base end portion. The elastic portion 18 is elastically deformed integrally with the sandwiching portion 15 and the receiving portion 19 is provided at the distal end portion of the elastic portion 18 and slightly bent along the insertion member 20.

  The receiving portion 19 is a slide receiving portion 19A that is urged by the insertion member 20 when the rear end surface is slid forward, and the lower end surface is moved upward when the insertion member 20 is moved upward. An urging receiving portion 19 </ b> B urged by the interlocking portion 24 is used.

(Insertion member 20)
As shown in FIG. 13, the insertion member 20 is made of synthetic resin, and houses a circular base portion 21 placed on the attachment member 14 and a temperature detection element 25 connected to the terminal portion of the electric wire 26. A cylindrical tubular portion 23, a pair of interposed portions 28 provided on the left and right of the tubular portion 23 and interposed between the tubular portion 23 and the fitting wall 16 of the mounting member 14, and downward from the base portion 21. And a restricting portion 29 that protrudes and restricts movement of the insertion member 20 in the separation direction.
The base 21 has an annular convex portion 22 formed on a circular flat plate.

  The cylindrical portion 23 has a lower end portion (tip portion) that is rounded and closed, and an upper end portion that is open. As shown in FIG. 3, a temperature detection element 25 is accommodated inside the distal end portion of the cylindrical portion 23.

  The temperature detection element 25 is configured by, for example, a thermistor. As the thermistor, a PTC thermistor or an NTC thermistor can be appropriately selected. Further, the temperature detection element 25 is not limited to the thermistor, and any element can be appropriately selected as long as the temperature can be detected. The temperature detection element 25 is connected to the inner side of the distal end portion of the cylindrical portion 23 with an adhesive 23A. Instead of the adhesive 23A, for example, the inside of the cylindrical portion 23 may be filled together with the temperature detection element 25 with a filler such as a synthetic resin.

  A pair of electric wires 26 are connected from the upper end of the temperature detecting element 25, and the pair of electric wires 26 are led out of the cylindrical portion 23. The electric wire 26 is connected to an external circuit composed of an ECU (Engine Control Unit) (not shown), and a signal from the temperature detecting element 25 is transmitted to the external circuit via the electric wire 26.

  The distal end portion of the cylindrical portion 23 becomes a temperature measuring portion 27 that measures the temperature in the duct 11 together with the temperature detecting element 25, and the temperature measuring portion 27 is arranged at a temperature measurement position inside the duct 11.

  On the outer surface of the cylindrical portion 23, an interlocking portion 24 that moves the attachment member 14 in conjunction with the insertion member 20 when the insertion member 20 is moved in the detaching direction (upward) is provided. The interlocking part 24 is a protrusion that protrudes from the outer surface of the cylindrical part 23, the upper end is a stepped part 24 </ b> A that rises in a stepped form from the outer surface of the cylindrical part 23, and the lower part is inclined from the substantially middle part in the vertical direction The inclined surface 24B has a small protruding dimension.

As shown in FIG. 14, the pair of interposed portions 28 are provided along the side surface of the tubular portion 23, and both extend in a belt shape in the front-rear direction. The downward projecting dimension of the interposition part 28 is slightly smaller than the downward projecting dimension of the restricting part 29.

The restricting portion 29 is a bending piece that protrudes downward from the lower surface of the base portion 21 behind the base portion 21 and is configured to be able to bend and deform in the front-rear direction with the base portion 21 side as a base end.
The restricting portion 29 includes a bent portion 30 that extends downward, and a locking convex portion 31 that protrudes rearward at the distal end portion of the bent portion 30.

The locking convex part 31 is a locking part 32 whose upper end rises in a step shape from the bending part 30, and a contact part 33 whose front end side is cut out in an inclined shape.
When the temperature sensor 10 is attached, the contact portion 33 contacts the attached portion 12 to bend and deform the bending portion 30.

Next, assembly of the temperature sensor 10 will be described.
When the tubular portion 23 and the restricting portion 29 of the insertion member 20 are inserted through the insertion hole 14A of the mounting member 14, the inclined surface 24B of the interlocking portion 24 of the tubular portion 23 comes into contact with the elastic contact piece 17 and makes elastic contact. When the piece 17 is elastically deformed and the elastic contact piece 17 exceeds the stepped portion 24A, the piece 17 is restored and deformed. Thus, the temperature sensor 10 is in a state in which the insertion member 20 is assembled at the normal position with respect to the mounting member 14 (FIG. 7).

Next, attachment of the temperature sensor 10 to the attached portion 12 will be described.
The temperature sensor 10 is attached to the attachment portion 12 so that the insertion wall 16 of the attachment member 14 is fitted into the attachment hole 13. At this time, before the fitting wall 16 is inserted into the mounting hole 13, the contact portion 33 of the restricting portion 29 contacts the hole edge of the mounting hole 13. When the restricting portion 29 contacting the hole edge of the mounting hole 13 is bent and deformed and the fitting wall 16 is inserted into the mounting hole 13, the restricting portion 29 passes through the bottom surface of the mounted portion 12. 29 is restored and deformed (FIG. 3). At this time, the position of the insertion member 20 in the front-rear direction with respect to the mounting member 14 is guided to the normal position (position in FIG. 3) by the elastic force of the elastic contact piece 17.
Even if the insertion member 20 is to be moved upward in this state, the locking portion 32 of the restricting portion 29 is locked to the hole edge of the mounting hole 13 and thus cannot be moved upward.

Next, removal of the temperature sensor 10 from the attached portion 12 will be described.
An operator grasps the base 21 of the insertion member 20 and slides it forward. Then, as the insertion member 20 slides, the elastic contact piece 17 is elastically deformed, and the front end of the locking convex portion 31 of the restricting portion 29 is arranged in front of the rear end of the mounting hole 13 (FIG. 4). In this state, when the operator pulls the insertion member 20 upward, the position of the restricting portion 29 is set to the position where the locking of the locking portion 32 to the mounted portion 12 is released, and the elastic contact piece 17 is By being urged by the interlocking portion 24, the attachment member 14 is connected to the insertion member 20 and is pulled upward. As a result, the temperature sensor 10 is detached from the attached portion 12.

According to the said embodiment, there exist the following effects.
(1) According to the present embodiment, if the insertion member 20 whose upward (removal direction) movement is restricted by the restriction portion 29 is slid relative to the mounting member 14 (to the right), the restriction portion 29 Regulations are lifted. Then, if the insertion member 20 is moved in the state (removal direction) from the state in which the restriction of the restriction portion 29 is released, the attachment member 14 is moved together with the insertion member 20 in the removal direction by the interlocking portion 24 of the insertion member 20. Moving. Thereby, it becomes possible to remove the temperature sensor 10 from the side where the temperature sensor 10 is attached to the attached portion 12. Therefore, it is possible to facilitate the removal work of the temperature sensor 10 from the mounted portion 12.

(2) The restricting portion 29 is a bending piece that abuts against the attached portion 12 and bends and deforms when the attachment member 14 is attached to the attached portion 12 in a state where the insertion member 20 is assembled at the normal position. The bending piece has a locking portion 32 that locks to the mounted portion 12 with respect to the upward movement (detachment direction) of the insertion member 20 in a state where the bending piece is assembled at the normal position.
If it does in this way, it will become possible to simplify the structure of the control part 29. FIG.

(3) The attachment member 14 is provided with an elastic contact piece 17 that makes elastic contact with the sliding movement of the insertion member 20.
In this way, the insertion member 20 can normally be urged to the normal position side by the elastic force of the elastic contact piece 17.

(4) The interlocking portion 24 contacts the end of the elastic contact piece 17 and moves the attachment member 14 in a connected state.

  In this case, since the elastic contact piece 17 is used for interlocking the attachment member 14, the attachment member 14 is interlocked as compared with the case where a configuration that contacts the interlocking portion 24 is provided separately from the elastic contact piece 17. It is possible to simplify the configuration for making it happen.

(5) The insertion member 20 includes a cylindrical portion 23 in which the temperature detection element 25 constituting the temperature measuring portion 27 is accommodated, and the interlocking portion 24 is formed in the cylindrical portion 23.
If it does in this way, it will become possible to form interlocking part 24 using composition of cylindrical part 23.

(6) The interlocking part 24 is a protrusion that protrudes from the cylindrical part 23.
If it does in this way, it will become possible to form interlocking part 24 by simple composition.

(7) The mounting hole 13 has an oval shape, and the mounting member 14 is provided with a fitting wall 16 to be fitted into the mounting hole 13. In this way, the shape of the mounting hole 13 is used. Thus, rotation of the temperature sensor 10 in the circumferential direction can be prevented.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the temperature sensor 10 is attached to the duct 11. However, the present invention is not limited to this, and the temperature sensor 10 may be attached to a part for measuring the outside air temperature. You may attach to the site | part to measure, and you may attach to the site | part which measures the temperature of an apparatus, and can attach to arbitrary positions as needed.

(2) In the above-described embodiment, the shape of the attachment hole 13 is an oval shape. However, the shape is not limited to this, and other shapes such as a perfect circle shape and an oval shape may be used.

(3) In the above embodiment, the direction in which the insertion member 20 is slid is the direction orthogonal to the insertion direction of the insertion member 20, but is not limited to this, and the insertion member 20 depends on the shape of the attached portion. The direction of sliding movement of the insertion member 20 may be a direction inclined at a predetermined angle other than the orthogonal direction with respect to the insertion direction of the insertion member 20.

(4) In the above embodiment, the interlocking portion 24 is configured to contact the elastic contact piece 17 of the mounting member 14 and interlock the mounting member 14 to the insertion member 20. 14 may be in contact with a portion other than the elastic contact piece 17 to be interlocked with the insertion member 20.
The

DESCRIPTION OF SYMBOLS 10 ... Temperature sensor 11 ... Duct 12 ... Mounted part 13 ... Mounting hole 14 ... Mounting member 16 ... Insertion wall 17 ... Elastic contact piece 20 ... Insertion member 23 ... Cylindrical part 24 ... Interlocking part 24A ... Step part 24B ... Inclined surface 25 ... Temperature detecting element 27 ... Temperature measuring part 29 ... Restricting part 30 ... Deflection part 31 ... Locking convex part 32 ... Locking part 33 ... Abutting part

Claims (7)

An insertion member that is attached to the attachment portion having the attachment hole and has a seal portion that covers the attachment hole, and a temperature measurement portion that is disposed at a temperature measurement position, and is inserted through the attachment member and assembled. A temperature sensor comprising:
The insertion member regulates movement in a separation direction opposite to the insertion direction of the insertion member in a state where the insertion member is assembled at a regular position with respect to the mounting member, and is a state assembled at the regular position. A restricting portion for releasing the restriction by sliding in a releasing direction that is a direction intersecting the insertion direction of the inserting member from the attachment member, and the insertion member for which the restriction by the restricting portion is released A temperature sensor comprising: an interlocking part that moves the attachment member in a connected state with respect to movement in the detachment direction.   The restricting portion is a bending piece that abuts against the attached portion when the attachment member is attached to the attached portion in a state where the insertion member is assembled at the regular position, and is bent. 2. The temperature sensor according to claim 1, wherein the piece has a locking portion that locks to the attached portion with respect to movement of the insertion member in the detaching direction in a state where the piece is assembled at the normal position.   The temperature sensor according to claim 1, wherein the attachment member is provided with an elastic contact piece that elastically contacts the sliding movement of the insertion member.   The temperature sensor according to claim 3, wherein the interlocking portion is in contact with an end portion of the elastic contact piece to move the attachment member in a connected state.   The said insertion member is provided with the cylindrical part in which the temperature detection element which comprises the said temperature measuring part is accommodated, The said interlocking | linkage part is formed in the said cylindrical part. The temperature sensor according to item.   The temperature sensor according to claim 5, wherein the interlocking part is a protrusion protruding from the cylindrical part.   The temperature sensor according to any one of claims 1 to 6, wherein the mounting hole has an oval shape, and the mounting member is provided with a fitting wall that is fitted into the mounting hole.

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